STUDY ON EVAPORATION CONTROL IN RESERVOIR

Global warming and the increasing concentration of greenhouse gases in the atmosphere will affect temperature and rainfall. This change has direct effect on reservoirs storage and availability of water resources. For example, measurements done in India showed that 95% of the rainfall is evaporated again which effect the available water storage. Many methods were proposed to reduce evaporation from open resurvoirs. These methods can be categorised as physical and chemical methods. Research was done evaluate the efffectiveness of the these methods in evaporation reduction from reservoirs. This project revealed that the physical methods can reduce evaporation effectively without environmental consequences but chemical methods effects water quality and reduce evaporation by 20 to 40% only.